Wonderful is an English equivalent of 'stupenda'. The Italian word is the feminine form of an adjective whose masculine form is 'stupendo'. It also may be translated as 'splendid, marvellous, magnificant'. It's pronounced 'stoo-PEHN-dah'.
"You're stupendous!" is a literal English equivalent of the Italian phrase Sei stupenda! The present indicative in the second person informal singular and the feminine singular adjective also may be rendered into English as "You look marvelous (splendid, wonderful)!" The pronunciation will be "SEH-ee SPLEN-dee-da" in Italian.
the answer is great
It means: Great (female)
Chi sei? in Italian is "Who are you?" in English.
Sei bravo! in Italian means "You're good" in English.
Sei bella! in Italian means "You're beautiful!" in English.
"Six" in English is sei in Italian.
sei li?
Tigrotta sei! in Italian means "You're a little tiger!" in English.
Perché sei arrabbiato? in Italian means "Why are you angry?" in English.
"Are you safe?" in English is Sei salvo? in Italian.
"You are horny!" in English is Sei arrapato! in Italian.
"You are special!" in English is Sei speciale! in Italian.
Sei un cavallo! in Italian means "You're a horse!" in English.
"You're in charge!" in English is Sei in carica! or Sei responsabile per...! in Italian.